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Maytag Stack Info / Diagnostics
TROUBLESHOOTING
CAUTION
Always disconnect power supply before making any continuity checks or resistance readings.
THE MICROPROCESSOR MODELS FOR ELECTRICAL FAILURES
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SYMPTOM |
CAUSES |
TEST PROCEDURE |
SOLUTION |
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Control will not function |
No power to trans- |
Check transformer input |
Reset breaker, replace |
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and no pad will |
former. |
for 120 VAC. |
fuse, plug in machine. |
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respond. |
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Replace transformer. |
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Transformer |
Check transformer for |
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10 and 26 VAC outputs. |
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Check for 10 and 26 |
Replace wiring. |
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Wire Harness |
VAC at the control |
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board. |
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Plug electric ribbon of a |
Replace membrane |
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Touch Pad |
new touch pad |
switch. |
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assembly into ribbon |
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connector. |
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If all above checks |
Replace control board. |
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Control Board |
pass |
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Control will not stay on |
Control Board |
Replace control board. |
Replace control board. |
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unless a program pad is |
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held down. |
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An LED or display |
Control Board |
Initiate the visual diag- |
Replace control board. |
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segment won't light. |
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nostics. If any L.E.D. or |
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segment won't light |
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CAUTION
Always disconnect power supply before making any continuity
checks or resistance readings.
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SYMPTOM |
CAUSES |
TEST
PROCEDURE |
SOLUTION |
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Relay,
water valve, or |
Transformer |
Check
transformer for |
Replace
transformer. |
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lid
switch will not func- |
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26
VAC output. |
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ti
on. |
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Wire
Harness |
Check
for 26 VAC on the |
Replace
wiring. |
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control
board. |
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Control
Board |
Check
self-diagnostic |
Replace
control board |
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operation. |
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Check
for 24 VDC at the |
Replace
wiring. |
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Wire
Harness |
board
and the relays. |
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Turn
on each machine |
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(dryer
and washer) and |
Replace
relays. |
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All
relays have failed |
check
each relay for |
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open. |
contact
closure. Check |
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relay
coils for conti- |
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nuity. |
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Motor
runs continuously |
Run
Relay Engaged |
Check
for constant 24V |
Replace
relay or control |
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to
relay coil (control |
board |
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board
problem) check |
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for
stuck relay contact |
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(relay
problem) |
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Washer
will only agitate |
Reversing
Relay |
Check
for 24V to coi I on |
Replace
reversing |
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spin.
Check coil conti- |
rel
ay. |
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nuity. |
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Washer
will only spin |
Reversing
Relay |
Check
for constant 24V |
Replace
relay or control |
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to
relay coil (control |
board. |
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problem).
Check for |
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relay
problem. |
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Washer
will not spin or |
No
power to washer |
Check
120 VAC input |
Plug
in washer. Reset |
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agitate |
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to
the washer |
breaker
or replace |
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Lid
Open |
'I
E' will persist in |
fuse. |
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washer
display if lid |
Shut
I id |
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isn't
shut |
Replace
lid switch |
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Lid
Switch |
Check
for continuity |
Replace
wiring |
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across
lid switch with |
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the
lid shut |
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Check
for continuity |
Replace
motor |
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Motor |
from
control board |
Replace
control board |
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output
to motor run |
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relay
and from relay |
Replace
motor run |
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Control
Board |
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relay |
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contacts
to the motor |
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Perform
motor check |
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Motor
Run Relay |
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Put
washer into spin |
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and
check for relay |
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contact
closure |
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SYMPTOM |
CAUSES |
TEST PROCEDURE |
SOLUTION |
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Washer spins instead of |
Reversing (Spin) Relay |
With power off check |
Replace reversing relay |
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agitates |
Control Board |
relay for welded con- |
Replace control board |
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tacts |
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Washer agitates in spin |
Washer agitates in |
Check for 24V across |
Replace wiring, relay |
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cycle |
spin cycle |
relay coil - (control |
coil, or control board |
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board problem) |
Replace relay |
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Reversing (Spin) |
Put washer into spin |
Replace control board |
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Relay |
and check for contact |
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closure |
Replace wiring |
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Check for continuity |
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Control Board |
from spin relay to |
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control board output |
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and from spin relay |
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Wire harness |
contacts to the motor |
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terminals. |
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Washer will not fill. |
No water to machine. |
Check faucets |
Turn of faucets |
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Overflow Switch |
Check for continuity |
Replace pressure |
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Water Valve |
across switch 4 to 5 |
switch if open |